Today Oracle released its latest version of Solaris technology, the Oracle Solaris 11 Express 2010.11 release. It includes a large number of new features not found in either Oracle Solaris 10 or previous OpenSolaris releases including ZFS encryption and deduplication, network-based packaging and provisioning systems, network virtualization, optimized I/O for NUMA platforms and optimized platform support including support for Intel's latest Nehalem and SPARC T3. In addition, Oracle Solaris 10 support is available from within a container/zone so migration of existing systems is greatly simplified. The release is available under a variety of licenses including a supported commercial license on a wide variety of x86 and SPARC platforms.

"BTRFS is just another Linux filesystem - and as we all know, Linux filesystems are not really ready for Enterprise use, as they scale bad.

BtrFS isn't just "another Linux file system" though. "

Actually, it is "just another filesystem", one amongst many. No distribution is using it as the default.

It's built by Oracle and Oracle are all about scalability and enterprise use.

Yes, but btrfs code in the kernel had (until very very very recently) the EXPERIMENTAL marker still on it. The on-disk format may be stable, but the fs itself most certainly is not. And the userland tools are changing on an almost daily basis, something that should not happen in an "enterprise-ready fs".

Oracle may be about scalability, but btrfs most certainly is not. Not yet, and not for at least another year or two. They don't even have parity RAID support yet.

So Oracle do have a vested interest in making BtrFS work as much as they do with ZFS.

Oracle wants to make money. Selling hardware makes them lots of money. What was one of Sun's better selling line of harwdare? Storage systems using ZFS. There's no way they're going to give up that cash cow. Btrfs won't run on the kinds of storage servers that ZFS will.

You're making a mountain out of an ant hill. ZFS isn't going anywhere for at least 5 years. Btrfs won't be usable for at least 5 years. IOW, you have 5 years of peace ahead of you before you need to start worrying about things.